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948ccd8eb0
A bit more painful than G_INSERT because it was more widely used, but this should simplify the handling of extract operations in most locations. llvm-svn: 297100
133 lines
3.1 KiB
YAML
133 lines
3.1 KiB
YAML
# RUN: llc -O0 -run-pass=legalizer -global-isel %s -o - | FileCheck %s
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--- |
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64--"
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define void @test_combines_1() { ret void }
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define void @test_combines_2() { ret void }
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define void @test_combines_3() { ret void }
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define void @test_combines_4() { ret void }
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define void @test_combines_5() { ret void }
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define void @test_combines_6() { ret void }
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...
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---
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name: test_combines_1
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body: |
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bb.0:
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liveins: %w0
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%0:_(s32) = COPY %w0
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%1:_(s8) = G_TRUNC %0
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; Only one of these extracts can be eliminated, the offsets don't match
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; properly in the other cases.
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; CHECK-LABEL: name: test_combines_1
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; CHECK: %2(s32) = G_SEQUENCE %1(s8), 1
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; CHECK: %3(s8) = G_EXTRACT %2(s32), 0
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; CHECK-NOT: G_EXTRACT
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; CHECK: %5(s8) = G_EXTRACT %2(s32), 2
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; CHECK: %6(s32) = G_ZEXT %1(s8)
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%2:_(s32) = G_SEQUENCE %1, 1
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%3:_(s8) = G_EXTRACT %2, 0
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%4:_(s8) = G_EXTRACT %2, 1
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%5:_(s8) = G_EXTRACT %2, 2
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%6:_(s32) = G_ZEXT %4
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...
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---
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name: test_combines_2
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body: |
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bb.0:
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liveins: %w0
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%0:_(s32) = COPY %w0
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; Similarly, here the types don't match.
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; CHECK-LABEL: name: test_combines_2
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; CHECK: %2(s64) = G_SEQUENCE %0(s32), 0, %1(s32), 32
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; CHECK: %3(s1) = G_EXTRACT %2(s64), 0
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; CHECK: %4(s64) = G_EXTRACT %2(s64), 0
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%1:_(s32) = G_ADD %0, %0
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%2:_(s64) = G_SEQUENCE %0, 0, %1, 32
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%3:_(s1) = G_EXTRACT %2, 0
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%4:_(s64) = G_EXTRACT %2, 0
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...
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---
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name: test_combines_3
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body: |
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bb.0:
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liveins: %w0
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%0:_(s32) = COPY %w0
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; CHECK-LABEL: name: test_combines_3
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; CHECK: %1(s32) = G_ADD %0, %0
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; CHECK-NOT: G_SEQUENCE
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; CHECK-NOT: G_EXTRACT
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; CHECK: %5(s32) = G_ADD %0, %1
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%1:_(s32) = G_ADD %0, %0
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%2:_(s64) = G_SEQUENCE %0, 0, %1, 32
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%3:_(s32) = G_EXTRACT %2, 0
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%4:_(s32) = G_EXTRACT %2, 32
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%5:_(s32) = G_ADD %3, %4
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...
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---
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name: test_combines_4
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body: |
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bb.0:
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liveins: %x0
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%0:_(s64) = COPY %x0
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; CHECK-LABEL: name: test_combines_4
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; CHECK: %2(<2 x s32>) = G_EXTRACT %1(s128), 0
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; CHECK: %3(<2 x s32>) = G_ADD %2, %2
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%1:_(s128) = G_SEQUENCE %0, 0, %0, 64
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%2:_(<2 x s32>) = G_EXTRACT %1, 0
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%3:_(<2 x s32>) = G_ADD %2, %2
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...
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---
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name: test_combines_5
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body: |
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bb.0:
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liveins: %w0
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%0:_(s32) = COPY %w0
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; CHECK-LABEL: name: test_combines_5
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; CHECK-NOT: G_SEQUENCE
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; CHECK-NOT: G_EXTRACT
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; CHECK: %5(s32) = G_ADD %0, %1
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%1:_(s32) = G_ADD %0, %0
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%2:_(s64) = G_SEQUENCE %0, 0, %1, 32
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%3:_(s32) = G_EXTRACT %2, 0
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%4:_(s32) = G_EXTRACT %2, 32
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%5:_(s32) = G_ADD %3, %4
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...
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---
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name: test_combines_6
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body: |
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bb.0:
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liveins: %w0
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; CHECK-LABEL: name: test_combines_6
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; CHECK: %0(s32) = COPY %w0
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%0:_(s32) = COPY %w0
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; Check that we replace all the uses of a G_EXTRACT.
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; CHECK-NOT: G_SEQUENCE
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; CHECK-NOT: G_EXTRACT
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; CHECK: %3(s32) = G_MUL %0, %0
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; CHECK: %4(s32) = G_ADD %0, %3
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%1:_(s32) = G_SEQUENCE %0, 0
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%2:_(s32) = G_EXTRACT %1, 0
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%3:_(s32) = G_MUL %2, %2
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%4:_(s32) = G_ADD %2, %3
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...
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