| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=x86_64-unknown-unknown -O3 -verify-machineinstrs < %s | FileCheck %s |
| |
| ; Test cases are generated from: |
| ; long long NAME(PARAM a, PARAM b) { |
| ; if (LHS > RHS) |
| ; return b; |
| ; if (LHS < RHS) |
| ; return a;\ |
| ; return a * b; |
| ; } |
| ; Please note funtion name is defined as <PARAM>_<LHS>_<RHS>. Take ll_a_op_b__1 |
| ; for example. ll is PARAM, a_op_b (i.e., a << b) is LHS, _1 (i.e., -1) is RHS. |
| |
| target datalayout = "e-m:e-i64:64-n32:64" |
| |
| define i64 @ll_a_op_b__2(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a_op_b__2: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movq %rsi, %rcx |
| ; CHECK-NEXT: movq %rdi, %rax |
| ; CHECK-NEXT: shlq %cl, %rax |
| ; CHECK-NEXT: cmpq $-2, %rax |
| ; CHECK-NEXT: jle .LBB0_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rcx, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB0_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rcx, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i64 %a, %b |
| %cmp = icmp sgt i64 %shl, -2 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i64 %shl, -2 |
| %mul = select i1 %cmp2, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @ll_a_op_b__1(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a_op_b__1: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movq %rsi, %rcx |
| ; CHECK-NEXT: movq %rdi, %rax |
| ; CHECK-NEXT: shlq %cl, %rax |
| ; CHECK-NEXT: testq %rax, %rax |
| ; CHECK-NEXT: js .LBB1_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rcx, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB1_1: # %if.end |
| ; CHECK-NEXT: cmpq $-1, %rax |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rcx, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i64 %a, %b |
| %cmp = icmp sgt i64 %shl, -1 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i64 %shl, -1 |
| %mul = select i1 %cmp2, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @ll_a_op_b_0(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a_op_b_0: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movq %rsi, %rcx |
| ; CHECK-NEXT: movq %rdi, %rax |
| ; CHECK-NEXT: shlq %cl, %rax |
| ; CHECK-NEXT: testq %rax, %rax |
| ; CHECK-NEXT: jle .LBB2_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rcx, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB2_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rcx, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i64 %a, %b |
| %cmp = icmp sgt i64 %shl, 0 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i64 %shl, 0 |
| %mul = select i1 %cmp2, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @ll_a_op_b_1(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a_op_b_1: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movq %rsi, %rcx |
| ; CHECK-NEXT: movq %rdi, %rax |
| ; CHECK-NEXT: shlq %cl, %rax |
| ; CHECK-NEXT: cmpq $1, %rax |
| ; CHECK-NEXT: jle .LBB3_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rcx, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB3_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rcx, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i64 %a, %b |
| %cmp = icmp sgt i64 %shl, 1 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i64 %shl, 1 |
| %mul = select i1 %cmp2, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @ll_a_op_b_2(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a_op_b_2: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movq %rsi, %rcx |
| ; CHECK-NEXT: movq %rdi, %rax |
| ; CHECK-NEXT: shlq %cl, %rax |
| ; CHECK-NEXT: cmpq $2, %rax |
| ; CHECK-NEXT: jle .LBB4_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rcx, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB4_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rcx, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i64 %a, %b |
| %cmp = icmp sgt i64 %shl, 2 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i64 %shl, 2 |
| %mul = select i1 %cmp2, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @ll_a__2(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a__2: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: cmpq $-2, %rdi |
| ; CHECK-NEXT: jle .LBB5_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rsi, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB5_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rsi, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i64 %a, -2 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i64 %a, -2 |
| %mul = select i1 %cmp1, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @ll_a__1(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a__1: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: testq %rdi, %rdi |
| ; CHECK-NEXT: js .LBB6_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rsi, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB6_1: # %if.end |
| ; CHECK-NEXT: cmpq $-1, %rdi |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rsi, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i64 %a, -1 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i64 %a, -1 |
| %mul = select i1 %cmp1, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @ll_a_0(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a_0: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: testq %rdi, %rdi |
| ; CHECK-NEXT: jle .LBB7_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rsi, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB7_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rsi, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i64 %a, 0 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i64 %a, 0 |
| %mul = select i1 %cmp1, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @ll_a_1(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a_1: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: cmpq $1, %rdi |
| ; CHECK-NEXT: jle .LBB8_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rsi, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB8_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rsi, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i64 %a, 1 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i64 %a, 1 |
| %mul = select i1 %cmp1, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @ll_a_2(i64 %a, i64 %b) { |
| ; CHECK-LABEL: ll_a_2: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: cmpq $2, %rdi |
| ; CHECK-NEXT: jle .LBB9_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movq %rsi, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB9_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmoveq %rsi, %rax |
| ; CHECK-NEXT: imulq %rdi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i64 %a, 2 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i64 %a, 2 |
| %mul = select i1 %cmp1, i64 %b, i64 1 |
| %spec.select = mul nsw i64 %mul, %a |
| ret i64 %spec.select |
| |
| return: ; preds = %entry |
| ret i64 %b |
| } |
| |
| define i64 @i_a_op_b__2(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a_op_b__2: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movl %esi, %ecx |
| ; CHECK-NEXT: movl %edi, %eax |
| ; CHECK-NEXT: shll %cl, %eax |
| ; CHECK-NEXT: cmpl $-2, %eax |
| ; CHECK-NEXT: jg .LBB10_2 |
| ; CHECK-NEXT: # %bb.1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %ecx, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %ecx |
| ; CHECK-NEXT: .LBB10_2: # %return |
| ; CHECK-NEXT: movslq %ecx, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i32 %a, %b |
| %cmp = icmp sgt i32 %shl, -2 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i32 %shl, -2 |
| %mul = select i1 %cmp2, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |
| |
| define i64 @i_a_op_b__1(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a_op_b__1: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movl %esi, %ecx |
| ; CHECK-NEXT: movl %edi, %eax |
| ; CHECK-NEXT: shll %cl, %eax |
| ; CHECK-NEXT: testl %eax, %eax |
| ; CHECK-NEXT: js .LBB11_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movslq %ecx, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB11_1: # %if.end |
| ; CHECK-NEXT: cmpl $-1, %eax |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %ecx, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %ecx |
| ; CHECK-NEXT: movslq %ecx, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i32 %a, %b |
| %cmp = icmp sgt i32 %shl, -1 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i32 %shl, -1 |
| %mul = select i1 %cmp2, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |
| |
| define i64 @i_a_op_b_0(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a_op_b_0: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movl %esi, %ecx |
| ; CHECK-NEXT: movl %edi, %eax |
| ; CHECK-NEXT: shll %cl, %eax |
| ; CHECK-NEXT: testl %eax, %eax |
| ; CHECK-NEXT: jle .LBB12_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movslq %ecx, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB12_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %ecx, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %ecx |
| ; CHECK-NEXT: movslq %ecx, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i32 %a, %b |
| %cmp = icmp sgt i32 %shl, 0 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i32 %shl, 0 |
| %mul = select i1 %cmp2, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |
| |
| define i64 @i_a_op_b_1(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a_op_b_1: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movl %esi, %ecx |
| ; CHECK-NEXT: movl %edi, %eax |
| ; CHECK-NEXT: shll %cl, %eax |
| ; CHECK-NEXT: cmpl $1, %eax |
| ; CHECK-NEXT: jg .LBB13_2 |
| ; CHECK-NEXT: # %bb.1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %ecx, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %ecx |
| ; CHECK-NEXT: .LBB13_2: # %return |
| ; CHECK-NEXT: movslq %ecx, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i32 %a, %b |
| %cmp = icmp sgt i32 %shl, 1 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i32 %shl, 1 |
| %mul = select i1 %cmp2, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |
| |
| define i64 @i_a_op_b_2(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a_op_b_2: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: movl %esi, %ecx |
| ; CHECK-NEXT: movl %edi, %eax |
| ; CHECK-NEXT: shll %cl, %eax |
| ; CHECK-NEXT: cmpl $2, %eax |
| ; CHECK-NEXT: jg .LBB14_2 |
| ; CHECK-NEXT: # %bb.1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %ecx, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %ecx |
| ; CHECK-NEXT: .LBB14_2: # %return |
| ; CHECK-NEXT: movslq %ecx, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %shl = shl i32 %a, %b |
| %cmp = icmp sgt i32 %shl, 2 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp2 = icmp eq i32 %shl, 2 |
| %mul = select i1 %cmp2, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |
| |
| define i64 @i_a__2(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a__2: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: cmpl $-2, %edi |
| ; CHECK-NEXT: jg .LBB15_2 |
| ; CHECK-NEXT: # %bb.1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %esi, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %esi |
| ; CHECK-NEXT: .LBB15_2: # %return |
| ; CHECK-NEXT: movslq %esi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i32 %a, -2 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i32 %a, -2 |
| %mul = select i1 %cmp1, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |
| |
| define i64 @i_a__1(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a__1: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: testl %edi, %edi |
| ; CHECK-NEXT: js .LBB16_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movslq %esi, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB16_1: # %if.end |
| ; CHECK-NEXT: cmpl $-1, %edi |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %esi, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %esi |
| ; CHECK-NEXT: movslq %esi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i32 %a, -1 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i32 %a, -1 |
| %mul = select i1 %cmp1, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |
| |
| define i64 @i_a_0(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a_0: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: testl %edi, %edi |
| ; CHECK-NEXT: jle .LBB17_1 |
| ; CHECK-NEXT: # %bb.2: # %return |
| ; CHECK-NEXT: movslq %esi, %rax |
| ; CHECK-NEXT: retq |
| ; CHECK-NEXT: .LBB17_1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %esi, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %esi |
| ; CHECK-NEXT: movslq %esi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i32 %a, 0 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i32 %a, 0 |
| %mul = select i1 %cmp1, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |
| |
| define i64 @i_a_1(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a_1: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: cmpl $1, %edi |
| ; CHECK-NEXT: jg .LBB18_2 |
| ; CHECK-NEXT: # %bb.1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %esi, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %esi |
| ; CHECK-NEXT: .LBB18_2: # %return |
| ; CHECK-NEXT: movslq %esi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i32 %a, 1 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i32 %a, 1 |
| %mul = select i1 %cmp1, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |
| |
| define i64 @i_a_2(i32 signext %a, i32 signext %b) { |
| ; CHECK-LABEL: i_a_2: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: cmpl $2, %edi |
| ; CHECK-NEXT: jg .LBB19_2 |
| ; CHECK-NEXT: # %bb.1: # %if.end |
| ; CHECK-NEXT: movl $1, %eax |
| ; CHECK-NEXT: cmovel %esi, %eax |
| ; CHECK-NEXT: imull %edi, %eax |
| ; CHECK-NEXT: movl %eax, %esi |
| ; CHECK-NEXT: .LBB19_2: # %return |
| ; CHECK-NEXT: movslq %esi, %rax |
| ; CHECK-NEXT: retq |
| entry: |
| %cmp = icmp sgt i32 %a, 2 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %cmp1 = icmp eq i32 %a, 2 |
| %mul = select i1 %cmp1, i32 %b, i32 1 |
| %spec.select = mul nsw i32 %mul, %a |
| br label %return |
| |
| return: ; preds = %if.end, %entry |
| %retval.0.in = phi i32 [ %b, %entry ], [ %spec.select, %if.end ] |
| %retval.0 = sext i32 %retval.0.in to i64 |
| ret i64 %retval.0 |
| } |