diff options
Diffstat (limited to 'llvm/test/CodeGen/AArch64/arm64-ldr-merge.ll')
-rw-r--r-- | llvm/test/CodeGen/AArch64/arm64-ldr-merge.ll | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/llvm/test/CodeGen/AArch64/arm64-ldr-merge.ll b/llvm/test/CodeGen/AArch64/arm64-ldr-merge.ll index 4e40bac4e71..5d8cb8d745d 100644 --- a/llvm/test/CodeGen/AArch64/arm64-ldr-merge.ll +++ b/llvm/test/CodeGen/AArch64/arm64-ldr-merge.ll @@ -1,36 +1,51 @@ -; RUN: llc < %s -march=arm64 -mcpu=cortex-a57 -verify-machineinstrs | FileCheck %s +; RUN: llc < %s -march=arm64 -mcpu=cortex-a57 -verify-machineinstrs | FileCheck %s --check-prefix=CHECK --check-prefix=LE +; RUN: llc < %s -march=aarch64_be -mcpu=cortex-a57 -verify-machineinstrs | FileCheck %s --check-prefix=CHECK --check-prefix=BE ; CHECK-LABEL: Ldrh_merge ; CHECK-NOT: ldrh ; CHECK: ldr [[NEW_DEST:w[0-9]+]] -; CHECK: and w{{[0-9]+}}, [[NEW_DEST]], #0xffff -; CHECK: lsr w{{[0-9]+}}, [[NEW_DEST]] +; CHECK-DAG: and [[LO_PART:w[0-9]+]], [[NEW_DEST]], #0xffff +; CHECK-DAG: lsr [[HI_PART:w[0-9]+]], [[NEW_DEST]], #16 +; LE: sub {{w[0-9]+}}, [[LO_PART]], [[HI_PART]] +; BE: sub {{w[0-9]+}}, [[HI_PART]], [[LO_PART]] define i16 @Ldrh_merge(i16* nocapture readonly %p) { %1 = load i16, i16* %p, align 2 %arrayidx2 = getelementptr inbounds i16, i16* %p, i64 1 %2 = load i16, i16* %arrayidx2, align 2 - %add = add nuw nsw i16 %1, %2 + %add = sub nuw nsw i16 %1, %2 ret i16 %add } ; CHECK-LABEL: Ldurh_merge ; CHECK-NOT: ldurh ; CHECK: ldur [[NEW_DEST:w[0-9]+]] -; CHECK: and w{{[0-9]+}}, [[NEW_DEST]], #0xffff -; CHECK: lsr w{{[0-9]+}}, [[NEW_DEST]] +; CHECK-DAG: and [[LO_PART:w[0-9]+]], [[NEW_DEST]], #0xffff +; CHECK-DAG: lsr [[HI_PART:w[0-9]+]], [[NEW_DEST]] +; LE: sub {{w[0-9]+}}, [[LO_PART]], [[HI_PART]] +; BE: sub {{w[0-9]+}}, [[HI_PART]], [[LO_PART]] define i16 @Ldurh_merge(i16* nocapture readonly %p) { entry: %arrayidx = getelementptr inbounds i16, i16* %p, i64 -2 %0 = load i16, i16* %arrayidx %arrayidx3 = getelementptr inbounds i16, i16* %p, i64 -1 %1 = load i16, i16* %arrayidx3 - %add = add nuw nsw i16 %0, %1 + %add = sub nuw nsw i16 %0, %1 ret i16 %add } ; CHECK-LABEL: Ldrh_4_merge ; CHECK-NOT: ldrh -; CHECK: ldp [[NEW_DEST:w[0-9]+]] +; CHECK: ldp [[WORD1:w[0-9]+]], [[WORD2:w[0-9]+]], [x0] +; CHECK-DAG: and [[WORD1LO:w[0-9]+]], [[WORD1]], #0xffff +; CHECK-DAG: lsr [[WORD1HI:w[0-9]+]], [[WORD1]], #16 +; CHECK-DAG: and [[WORD2LO:w[0-9]+]], [[WORD2]], #0xffff +; CHECK-DAG: lsr [[WORD2HI:w[0-9]+]], [[WORD2]], #16 +; LE-DAG: sub [[TEMP1:w[0-9]+]], [[WORD1HI]], [[WORD1LO]] +; BE-DAG: sub [[TEMP1:w[0-9]+]], [[WORD1LO]], [[WORD1HI]] +; LE: udiv [[TEMP2:w[0-9]+]], [[TEMP1]], [[WORD2LO]] +; BE: udiv [[TEMP2:w[0-9]+]], [[TEMP1]], [[WORD2HI]] +; LE: sub w0, [[TEMP2]], [[WORD2HI]] +; BE: sub w0, [[TEMP2]], [[WORD2LO]] define i16 @Ldrh_4_merge(i16* nocapture readonly %P) { %arrayidx = getelementptr inbounds i16, i16* %P, i64 0 %l0 = load i16, i16* %arrayidx @@ -40,8 +55,8 @@ define i16 @Ldrh_4_merge(i16* nocapture readonly %P) { %l2 = load i16, i16* %arrayidx7 %arrayidx12 = getelementptr inbounds i16, i16* %P, i64 3 %l3 = load i16, i16* %arrayidx12 - %add4 = add nuw nsw i16 %l1, %l0 - %add9 = add nuw nsw i16 %add4, %l2 - %add14 = add nuw nsw i16 %add9, %l3 + %add4 = sub nuw nsw i16 %l1, %l0 + %add9 = udiv i16 %add4, %l2 + %add14 = sub nuw nsw i16 %add9, %l3 ret i16 %add14 } |