| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -passes=instsimplify -S | FileCheck %s |
| ; PR2165 |
| |
| define <1 x i64> @test1() { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: ret <1 x i64> splat (i64 63) |
| ; |
| %A = bitcast i64 63 to <1 x i64> |
| ret <1 x i64> %A |
| } |
| |
| ; Ensure that a FP source operand isn't propagated to an icmp. |
| |
| @a = external global i16, align 1 |
| @b = external global i16, align 1 |
| |
| define i1 @bad_icmp_constexpr_bitcast() { |
| ; CHECK-LABEL: @bad_icmp_constexpr_bitcast( |
| ; CHECK-NEXT: [[FADD:%.*]] = fadd float bitcast (i32 ptrtoint (ptr @b to i32) to float), 2.000000e+00 |
| ; CHECK-NEXT: [[BITCAST:%.*]] = bitcast float [[FADD]] to i32 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 ptrtoint (ptr @a to i32), [[BITCAST]] |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %fadd = fadd float bitcast (i32 ptrtoint (ptr @b to i32) to float), 2.0 |
| %bitcast = bitcast float %fadd to i32 |
| %cmp = icmp eq i32 ptrtoint (ptr @a to i32), %bitcast |
| ret i1 %cmp |
| } |
| |
| ; Ensure that an integer source operand isn't propagated to a fcmp. |
| |
| @c = external global i16, align 1 |
| @d = external global i16, align 1 |
| |
| define i1 @bad_fcmp_constexpr_bitcast() { |
| ; CHECK-LABEL: @bad_fcmp_constexpr_bitcast( |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq float bitcast (i32 ptrtoint (ptr @c to i32) to float), bitcast (i32 add (i32 ptrtoint (ptr @d to i32), i32 2) to float) |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %cmp = fcmp oeq float bitcast (i32 ptrtoint (ptr @c to i32) to float), bitcast (i32 add (i32 ptrtoint (ptr @d to i32), i32 2) to float) |
| ret i1 %cmp |
| } |
| |
| ; Ensure that an "ordered and equal" fcmp of a ConstantExpr to itself is not folded, since the ConstantExpr may be a NaN. |
| |
| define i1 @fcmp_constexpr_oeq(float %conv) { |
| ; CHECK-LABEL: @fcmp_constexpr_oeq( |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float) |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %cmp = fcmp oeq float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float) |
| ret i1 %cmp |
| } |
| |
| ; Ensure that an "unordered or not equal" fcmp of a ConstantExpr to itself is not folded, since the ConstantExpr may be a NaN. |
| |
| define i1 @fcmp_constexpr_une(float %conv) { |
| ; CHECK-LABEL: @fcmp_constexpr_une( |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp une float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float) |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %cmp = fcmp une float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float) |
| ret i1 %cmp |
| } |
| |
| define i1 @fcmp_constexpr_ueq(float %conv) { |
| ; CHECK-LABEL: @fcmp_constexpr_ueq( |
| ; CHECK-NEXT: ret i1 true |
| ; |
| %cmp = fcmp ueq float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float) |
| ret i1 %cmp |
| } |
| |
| define i1 @fcmp_constexpr_one(float %conv) { |
| ; CHECK-LABEL: @fcmp_constexpr_one( |
| ; CHECK-NEXT: ret i1 false |
| ; |
| %cmp = fcmp one float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float) |
| ret i1 %cmp |
| } |
| |
| %T = type { i8 } |
| @G = external global %T |
| |
| define ptr @bitcast_to_gep() { |
| ; CHECK-LABEL: @bitcast_to_gep( |
| ; CHECK-NEXT: ret ptr @G |
| ; |
| ret ptr @G |
| } |
| |
| define ptr addrspace(1) @addrspacecast_to_gep() { |
| ; CHECK-LABEL: @addrspacecast_to_gep( |
| ; CHECK-NEXT: ret ptr addrspace(1) addrspacecast (ptr @G to ptr addrspace(1)) |
| ; |
| %p = addrspacecast ptr @G to ptr addrspace(1) |
| ret ptr addrspace(1) %p |
| } |