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https://github.com/RPCS3/llvm-mirror.git
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cf5af96d9c
This patch teaches the Arm back-end to generate the SMMULR, SMMLAR and SMMLSR instructions from equivalent IR patterns. Differential Revision: https://reviews.llvm.org/D41775 llvm-svn: 322361
172 lines
4.5 KiB
LLVM
172 lines
4.5 KiB
LLVM
; RUN: llc -mtriple=thumbv7m -mattr=+dsp %s -o - | FileCheck %s
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; RUN: llc -mtriple=armv7a %s -o - | FileCheck %s
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; RUN: llc -mtriple=thumbv7m -mattr=-dsp %s -o - | FileCheck --check-prefix=NODSP %s
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define hidden i32 @SMMULR_SMMLAR(i32 %a, i32 %b0, i32 %b1, i32 %Xn, i32 %Xn1) local_unnamed_addr {
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entry:
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; CHECK-LABEL: SMMULR_SMMLAR:
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; CHECK: ldr r0, [sp]
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; CHECK-NEXT: smmulr r0, {{(r0, r2|r2, r0)}}
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; CHECK-NEXT: smmlar r0, {{(r1, r3|r3, r1)}}, r0
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; NODSP-LABEL: SMMULR_SMMLAR:
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; NODSP-NOT: smmulr
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; NODSP-NOT: smmlar
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%conv = sext i32 %b1 to i64
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%conv1 = sext i32 %Xn1 to i64
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%mul = mul nsw i64 %conv1, %conv
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%add = add nsw i64 %mul, 2147483648
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%0 = and i64 %add, -4294967296
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%conv4 = sext i32 %b0 to i64
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%conv5 = sext i32 %Xn to i64
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%mul6 = mul nsw i64 %conv5, %conv4
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%add7 = add i64 %mul6, 2147483648
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%add8 = add i64 %add7, %0
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%1 = lshr i64 %add8, 32
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%conv10 = trunc i64 %1 to i32
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ret i32 %conv10
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}
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define hidden i32 @SMMULR(i32 %a, i32 %b) local_unnamed_addr {
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entry:
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; CHECK-LABEL: SMMULR:
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; CHECK: smmulr r0, {{(r0, r1|r1, r0)}}
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; NODSP-LABEL: SMMULR:
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; NODSP-NOT: smmulr
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%conv = sext i32 %a to i64
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%conv1 = sext i32 %b to i64
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%mul = mul nsw i64 %conv1, %conv
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%add = add nsw i64 %mul, 2147483648
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%0 = lshr i64 %add, 32
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%conv2 = trunc i64 %0 to i32
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ret i32 %conv2
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}
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define hidden i32 @SMMUL(i32 %a, i32 %b) local_unnamed_addr {
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entry:
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; CHECK-LABEL: SMMUL:
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; CHECK: smmul r0, {{(r0, r1|r1, r0)}}
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; NODSP-LABEL: SMMUL:
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; NODSP-NOT: smmul
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%conv = sext i32 %a to i64
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%conv1 = sext i32 %b to i64
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%mul = mul nsw i64 %conv1, %conv
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%0 = lshr i64 %mul, 32
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%conv2 = trunc i64 %0 to i32
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ret i32 %conv2
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}
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define hidden i32 @SMMLSR(i32 %a, i32 %b, i32 %c) local_unnamed_addr {
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entry:
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; CHECK-LABEL: SMMLSR:
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; CHECK: smmlsr r0, {{(r1, r2|r2, r1)}}, r0
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; NODSP-LABEL: SMMLSR:
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; NODSP-NOT: smmlsr
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%conv6 = zext i32 %a to i64
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%shl = shl nuw i64 %conv6, 32
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%conv1 = sext i32 %b to i64
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%conv2 = sext i32 %c to i64
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%mul = mul nsw i64 %conv2, %conv1
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%sub = or i64 %shl, 2147483648
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%add = sub i64 %sub, %mul
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%0 = lshr i64 %add, 32
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%conv3 = trunc i64 %0 to i32
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ret i32 %conv3
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}
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define hidden i32 @NOT_SMMLSR(i32 %a, i32 %b, i32 %c) local_unnamed_addr {
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entry:
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; CHECK-LABEL: NOT_SMMLSR:
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; CHECK-NOT: smmlsr
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; NODSP-LABEL: NOT_SMMLSR:
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; NODSP-NOT: smmlsr
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%conv = sext i32 %b to i64
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%conv1 = sext i32 %c to i64
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%mul = mul nsw i64 %conv1, %conv
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%add = add nsw i64 %mul, 2147483648
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%0 = lshr i64 %add, 32
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%conv2 = trunc i64 %0 to i32
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%sub = sub nsw i32 %a, %conv2
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ret i32 %sub
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}
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define hidden i32 @SMMLS(i32 %a, i32 %b, i32 %c) local_unnamed_addr {
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entry:
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; CHECK-LABEL: SMMLS:
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; CHECK: smmls r0, {{(r1, r2|r2, r1)}}, r0
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; NODSP-LABEL: SMMLS:
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; NODSP-NOT: smmls
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%conv5 = zext i32 %a to i64
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%shl = shl nuw i64 %conv5, 32
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%conv1 = sext i32 %b to i64
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%conv2 = sext i32 %c to i64
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%mul = mul nsw i64 %conv2, %conv1
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%sub = sub nsw i64 %shl, %mul
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%0 = lshr i64 %sub, 32
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%conv3 = trunc i64 %0 to i32
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ret i32 %conv3
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}
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define hidden i32 @NOT_SMMLS(i32 %a, i32 %b, i32 %c) local_unnamed_addr {
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entry:
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; CHECK-LABEL: NOT_SMMLS:
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; CHECK-NOT: smmls
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; NODSP-LABEL: NOT_SMMLS:
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; NODSP-NOT: smmls
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%conv = sext i32 %b to i64
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%conv1 = sext i32 %c to i64
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%mul = mul nsw i64 %conv1, %conv
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%0 = lshr i64 %mul, 32
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%conv2 = trunc i64 %0 to i32
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%sub = sub nsw i32 %a, %conv2
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ret i32 %sub
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}
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define hidden i32 @SMMLA(i32 %a, i32 %b, i32 %c) local_unnamed_addr {
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entry:
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; CHECK-LABEL: SMMLA:
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; CHECK: smmla r0, {{(r1, r2|r2, r1)}}, r0
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; NODSP-LABEL: SMMLA:
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; NODSP-NOT: smmla
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%conv = sext i32 %b to i64
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%conv1 = sext i32 %c to i64
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%mul = mul nsw i64 %conv1, %conv
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%0 = lshr i64 %mul, 32
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%conv2 = trunc i64 %0 to i32
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%add = add nsw i32 %conv2, %a
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ret i32 %add
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}
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define hidden i32 @SMMLAR(i32 %a, i32 %b, i32 %c) local_unnamed_addr {
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entry:
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; CHECK-LABEL: SMMLAR:
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; CHECK: smmlar r0, {{(r1, r2|r2, r1)}}, r0
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; NODSP-LABEL: SMMLAR:
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; NODSP-NOT: smmlar
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%conv7 = zext i32 %a to i64
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%shl = shl nuw i64 %conv7, 32
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%conv1 = sext i32 %b to i64
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%conv2 = sext i32 %c to i64
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%mul = mul nsw i64 %conv2, %conv1
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%add = or i64 %shl, 2147483648
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%add3 = add i64 %add, %mul
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%0 = lshr i64 %add3, 32
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%conv4 = trunc i64 %0 to i32
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ret i32 %conv4
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}
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define hidden i32 @NOT_SMMLA(i32 %a, i32 %b, i32 %c) local_unnamed_addr {
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entry:
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; CHECK-LABEL: NOT_SMMLA:
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; CHECK-NOT: smmla
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; NODSP-LABEL: NOT_SMMLA:
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; NODSP-NOT: smmla
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%conv = sext i32 %b to i64
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%conv1 = sext i32 %c to i64
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%mul = mul nsw i64 %conv1, %conv
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%0 = lshr i64 %mul, 32
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%conv2 = trunc i64 %0 to i32
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%add = xor i32 %conv2, -2147483648
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%add3 = add i32 %add, %a
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ret i32 %add3
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}
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