derek.holloway
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65 lines
1.7 KiB
LLVM
65 lines
1.7 KiB
LLVM
; Test that double word post increment load is not generated.
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; REQUIRES: asserts
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; REQUIRES: asserts
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; RUN: llc -mtriple=hexagon -O2 -debug-only=hexagon-load-store-widening \
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; RUN: %s -o 2>&1 - | FileCheck %s
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; Loads with positive invalid postinc is not widened
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define ptr @test1() {
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; CHECK-LABEL: test1
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; CHECK-NOT: memd(r{{[0-9]+}}++
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entry:
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%0 = load ptr, ptr null, align 4
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%b = getelementptr i8, ptr %0, i32 20
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%1 = load i32, ptr %0, align 8
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%c = getelementptr i8, ptr %0, i32 4
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%2 = load i32, ptr %c, align 4
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%call55 = call i8 @foo(ptr %b, i32 %1, i32 %2)
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ret ptr null
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}
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; Loads with negative invalid postinc is not widened
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define ptr @test2() {
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; CHECK-LABEL: test2
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; CHECK-NOT: memd(r{{[0-9]+}}++
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entry:
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%0 = load ptr, ptr null, align 4
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%b = getelementptr i8, ptr %0, i32 -20
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%1 = load i32, ptr %0, align 8
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%c = getelementptr i8, ptr %0, i32 4
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%2 = load i32, ptr %c, align 4
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%call55 = call i8 @foo(ptr %b, i32 %1, i32 %2)
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ret ptr null
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}
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; Loads with valid positive postinc is widened
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define ptr @test3() {
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; CHECK-LABEL: test3
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; CHECK: memd
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entry:
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%0 = load ptr, ptr null, align 4
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%b = getelementptr i8, ptr %0, i32 24
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%1 = load i32, ptr %0, align 8
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%c = getelementptr i8, ptr %0, i32 4
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%2 = load i32, ptr %c, align 4
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%call55 = call i8 @foo(ptr %b, i32 %1, i32 %2)
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ret ptr null
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}
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; Loads with valid negative postinc is widened
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define ptr @test4() {
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; CHECK-LABEL: test4
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; CHECK: memd
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entry:
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%0 = load ptr, ptr null, align 4
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%b = getelementptr i8, ptr %0, i32 -24
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%1 = load i32, ptr %0, align 8
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%c = getelementptr i8, ptr %0, i32 4
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%2 = load i32, ptr %c, align 4
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%call55 = call i8 @foo(ptr %b, i32 %1, i32 %2)
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ret ptr null
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}
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declare i8 @foo(ptr, i32, i32)
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