| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \ |
| ; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | \ |
| ; RUN: FileCheck %s |
| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu \ |
| ; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | \ |
| ; RUN: FileCheck %s |
| ; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu \ |
| ; RUN: -mcpu=pwr10 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | \ |
| ; RUN: FileCheck %s --check-prefix=CHECK32 |
| |
| ; These test cases aim to test constant materialization using the pli instruction on Power10. |
| |
| define signext i32 @t_16BitsMinRequiring34Bits() { |
| ; CHECK-LABEL: t_16BitsMinRequiring34Bits: |
| ; CHECK: pli r3, 32768 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_16BitsMinRequiring34Bits: |
| ; CHECK32: pli r3, 32768 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 32768 |
| } |
| |
| define signext i32 @t_16Bits() { |
| ; CHECK-LABEL: t_16Bits: |
| ; CHECK: pli r3, 62004 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_16Bits: |
| ; CHECK32: pli r3, 62004 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 62004 |
| } |
| |
| define signext i32 @t_lt32gt16BitsNonShiftable() { |
| ; CHECK-LABEL: t_lt32gt16BitsNonShiftable: |
| ; CHECK: pli r3, 1193046 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_lt32gt16BitsNonShiftable: |
| ; CHECK32: pli r3, 1193046 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 1193046 |
| } |
| |
| define signext i32 @t_32Bits() { |
| ; CHECK-LABEL: t_32Bits: |
| ; CHECK: pli r3, -231451016 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_32Bits: |
| ; CHECK32: pli r3, -231451016 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 -231451016 |
| } |
| |
| define i64 @t_34BitsLargestPositive() { |
| ; CHECK-LABEL: t_34BitsLargestPositive: |
| ; CHECK: pli r3, 8589934591 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_34BitsLargestPositive: |
| ; CHECK32: li r3, 1 |
| ; CHECK32-NEXT: li r4, -1 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i64 8589934591 |
| } |
| |
| define i64 @t_neg34Bits() { |
| ; CHECK-LABEL: t_neg34Bits: |
| ; CHECK: pli r3, -8284514696 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_neg34Bits: |
| ; CHECK32: li r3, -2 |
| ; CHECK32-NEXT: pli r4, 305419896 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i64 -8284514696 |
| } |
| |
| define signext i32 @t_16BitsMinRequiring34BitsMinusOne() { |
| ; CHECK-LABEL: t_16BitsMinRequiring34BitsMinusOne: |
| ; CHECK: li r3, 32767 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_16BitsMinRequiring34BitsMinusOne: |
| ; CHECK32: li r3, 32767 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 32767 |
| } |
| |
| define signext i32 @t_lt16Bits() { |
| ; CHECK-LABEL: t_lt16Bits: |
| ; CHECK: li r3, 291 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_lt16Bits: |
| ; CHECK32: li r3, 291 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 291 |
| } |
| |
| define signext i32 @t_neglt16Bits() { |
| ; CHECK-LABEL: t_neglt16Bits: |
| ; CHECK: li r3, -3805 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_neglt16Bits: |
| ; CHECK32: li r3, -3805 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 -3805 |
| } |
| |
| define signext i32 @t_neg16Bits() { |
| ; CHECK-LABEL: t_neg16Bits: |
| ; CHECK: li r3, -32204 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_neg16Bits: |
| ; CHECK32: li r3, -32204 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 -32204 |
| } |
| |
| define signext i32 @t_lt32gt16BitsShiftable() { |
| ; CHECK-LABEL: t_lt32gt16BitsShiftable: |
| ; CHECK: lis r3, 18 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_lt32gt16BitsShiftable: |
| ; CHECK32: lis r3, 18 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 1179648 |
| } |
| |
| define signext i32 @t_32gt16BitsShiftable() { |
| ; CHECK-LABEL: t_32gt16BitsShiftable: |
| ; CHECK: lis r3, -3532 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_32gt16BitsShiftable: |
| ; CHECK32: lis r3, -3532 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 -231473152 |
| } |
| |
| define signext i32 @t_32BitsZero() { |
| ; CHECK-LABEL: t_32BitsZero: |
| ; CHECK: li r3, 0 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_32BitsZero: |
| ; CHECK32: li r3, 0 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 0 |
| } |
| |
| define signext i32 @t_32BitsAllOnes() { |
| ; CHECK-LABEL: t_32BitsAllOnes: |
| ; CHECK: li r3, -1 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_32BitsAllOnes: |
| ; CHECK32: li r3, -1 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i32 -1 |
| } |
| |
| define i64 @t_34BitsLargestPositivePlus() { |
| ; CHECK-LABEL: t_34BitsLargestPositivePlus: |
| ; CHECK: li r3, 1 |
| ; CHECK-NEXT: rldic r3, r3, 33, 30 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_34BitsLargestPositivePlus: |
| ; CHECK32: li r3, 2 |
| ; CHECK32-NEXT: li r4, 0 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i64 8589934592 |
| } |
| |
| define i64 @t_34Bits() { |
| ; CHECK-LABEL: t_34Bits: |
| ; CHECK: pli r3, 1648790223 |
| ; CHECK-NEXT: rldic r3, r3, 3, 30 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_34Bits: |
| ; CHECK32: li r3, 3 |
| ; CHECK32-NEXT: pli r4, 305419896 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i64 13190321784 |
| } |
| |
| define i64 @t_35Bits() { |
| ; CHECK-LABEL: t_35Bits: |
| ; CHECK: pli r3, 4266035919 |
| ; CHECK-NEXT: rldic r3, r3, 3, 29 |
| ; CHECK-NEXT: blr |
| ; CHECK32-LABEL: t_35Bits: |
| ; CHECK32: li r3, 7 |
| ; CHECK32-NEXT: pli r4, -231451016 |
| ; CHECK32-NEXT: blr |
| |
| entry: |
| ret i64 34128287352 |
| } |
| |
| ; (Value >> Shift) can be expressed in 34 bits |
| define i64 @t_Shift() { |
| ; CHECK-LABEL: t_Shift: |
| ; CHECK: pli r3, 8522759166 |
| ; CHECK-NEXT: rotldi r3, r3, 48 |
| ; CHECK-NEXT: blr |
| |
| entry: |
| ; 0xFBFE00000001FBFE |
| ret i64 18157950747604548606 |
| } |
| |
| ; Leading Zeros + Following Ones + Trailing Zeros > 30 |
| define i64 @t_LZFOTZ() { |
| ; CHECK-LABEL: t_LZFOTZ: |
| ; CHECK: pli r3, -349233 |
| ; CHECK-NEXT: rldic r3, r3, 4, 12 |
| ; CHECK-NEXT: blr |
| |
| entry: |
| ; 0x000FFFFFFFAABCF0 |
| ret i64 4503599621782768 |
| } |
| |
| ; Leading Zeros + Trailing Ones > 30 |
| define i64 @t_LZTO() { |
| ; CHECK-LABEL: t_LZTO: |
| ; CHECK: pli r3, -2684406441 |
| ; CHECK-NEXT: rldicl r3, r3, 11, 19 |
| ; CHECK-NEXT: blr |
| entry: |
| ; 0x00001AFFF9AABFFF |
| ret i64 29686707699711 |
| } |
| |
| ; Leading Zeros + Trailing Ones + Following Zeros > 30 |
| define i64 @t_LZTOFO() { |
| ; CHECK-LABEL: t_LZTOFO: |
| ; CHECK: pli r3, -5720033968 |
| ; CHECK-NEXT: rldicl r3, r3, 11, 12 |
| ; CHECK-NEXT: blr |
| entry: |
| ; 0x000FF55879AA87FF |
| ret i64 4491884997806079 |
| } |
| |
| ; Requires full expansion |
| define i64 @t_Full64Bits1() { |
| ; CHECK-LABEL: t_Full64Bits1: |
| ; CHECK: pli r4, 2146500607 |
| ; CHECK-NEXT: pli r3, 4043305214 |
| ; CHECK-NEXT: rldimi r3, r4, 32, 0 |
| ; CHECK-NEXT: blr |
| entry: |
| ; 0x7FF0FFFFF0FFF0FE |
| ret i64 9219149911952453886 |
| } |
| |
| ; Requires full expansion |
| define i64 @t_Ful64Bits2() { |
| ; CHECK-LABEL: t_Ful64Bits2: |
| ; CHECK: pli r4, 4042326015 |
| ; CHECK-NEXT: pli r3, 4043305214 |
| ; CHECK-NEXT: rldimi r3, r4, 32, 0 |
| ; CHECK-NEXT: blr |
| entry: |
| ; 0xF0F0FFFFF0FFF0FE |
| ret i64 17361658038238310654 |
| } |
| |
| ; A splat of 32 bits: 32 Bits Low == 32 Bits High |
| define i64 @t_Splat32Bits() { |
| ; CHECK-LABEL: t_Splat32Bits: |
| ; CHECK: pli r3, 262916796 |
| ; CHECK-NEXT: rldimi r3, r3, 32, 0 |
| ; CHECK-NEXT: blr |
| entry: |
| ; 0x0FABCABC0FABCABC |
| ret i64 1129219040652020412 |
| } |
| |
| ; Producing `pli` when the constant fits within 34-bits and the constant |
| ; is being produced in other transformations (such as complex bit permutations). |
| define i64 @t_34Bits_Complex(i64 %a, i64 %b) { |
| ; CHECK-LABEL: t_34Bits_Complex: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: rotldi r4, r4, 30 |
| ; CHECK-NEXT: rldimi r3, r4, 34, 31 |
| ; CHECK-NEXT: pli r4, -268435457 |
| ; CHECK-NEXT: and r3, r3, r4 |
| ; CHECK-NEXT: blr |
| ; |
| ; CHECK32-LABEL: t_34Bits_Complex: |
| ; CHECK32: # %bb.0: # %entry |
| ; CHECK32-NEXT: rlwinm r4, r6, 0, 4, 2 |
| ; CHECK32-NEXT: rlwimi r3, r5, 0, 31, 29 |
| ; CHECK32-NEXT: blr |
| entry: |
| %and = and i64 %a, 8589934592 |
| %and1 = and i64 %b, -8858370049 |
| %or = or i64 %and1, %and |
| ret i64 %or |
| } |
| |
| ; The load immediates resulting from phi-nodes are needed to test whether |
| ; li/lis is preferred to pli by the instruction selector. |
| define dso_local void @t_phiNode() { |
| ; CHECK-LABEL: t_phiNode: |
| ; CHECK: lis r6, 18 |
| ; CHECK-NEXT: li r5, 291 |
| ; CHECK-NEXT: li r4, 0 |
| ; CHECK-NEXT: cmpwi r3, 1 |
| ; CHECK-NEXT: li r3, -1 |
| ; CHECK: pli r6, 2147483647 |
| ; CHECK-NEXT: pli r5, 1193046 |
| ; CHECK-NEXT: pli r4, 32768 |
| ; CHECK-NEXT: pli r3, -231451016 |
| ; CHECK32-LABEL: t_phiNode: |
| ; CHECK32: lis r6, 18 |
| ; CHECK32-NEXT: li r5, 291 |
| ; CHECK32-NEXT: li r4, 0 |
| ; CHECK32-NEXT: cmpwi r3, 1 |
| ; CHECK32-NEXT: li r3, -1 |
| ; CHECK32: pli r6, 2147483647 |
| ; CHECK32-NEXT: pli r5, 1193046 |
| ; CHECK32-NEXT: pli r4, 32768 |
| ; CHECK32-NEXT: pli r3, -231451016 |
| |
| entry: |
| br label %while.body |
| |
| while.body: ; preds = %if.else.i, %entry |
| br label %while.body.i |
| |
| while.body.i: ; preds = %sw.epilog.i, %while.body |
| %a.1.i = phi i32 [ %a.2.i, %sw.epilog.i ], [ -1, %while.body ] |
| %b.1.i = phi i32 [ %b.2.i, %sw.epilog.i ], [ 0, %while.body ] |
| %c.1.i = phi i32 [ %c.2.i, %sw.epilog.i ], [ 291, %while.body ] |
| %d.1.i = phi i32 [ %d.2.i, %sw.epilog.i ], [ 1179648, %while.body ] |
| %0 = load i8, i8* null, align 1 |
| %cmp1.i = icmp eq i8 %0, 1 |
| br i1 %cmp1.i, label %if.then.i, label %if.else.i |
| |
| if.then.i: ; preds = %while.body.i |
| switch i8 undef, label %sw.default.i [ |
| i8 3, label %sw.epilog.i |
| i8 2, label %sw.bb1.i |
| ] |
| |
| sw.bb1.i: ; preds = %if.then.i |
| br label %sw.epilog.i |
| |
| sw.default.i: ; preds = %if.then.i |
| unreachable |
| |
| sw.epilog.i: ; preds = %sw.bb2.i, %sw.bb1.i, %if.then.i |
| %a.2.i = phi i32 [ -231451016, %sw.bb1.i ], [ %a.1.i, %if.then.i ] |
| %b.2.i = phi i32 [ 32768, %sw.bb1.i ], [ %b.1.i, %if.then.i ] |
| %c.2.i = phi i32 [ 1193046, %sw.bb1.i ], [ %c.1.i, %if.then.i ] |
| %d.2.i = phi i32 [ 2147483647, %sw.bb1.i ], [ %d.1.i, %if.then.i ] |
| br label %while.body.i |
| |
| if.else.i: ; preds = %while.body.i |
| call void @func2(i32 signext %a.1.i, i32 signext %b.1.i, i32 signext %c.1.i, i32 signext %d.1.i) |
| br label %while.body |
| } |
| |
| declare void @func2(i32, i32, i32, i32) |
