forked from OSchip/llvm-project
27 lines
1.3 KiB
LLVM
27 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
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; Check memory cost model action for a load of an unusually sized integer
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; follow by and a trunc to a register sized integer gives a cost of 1 rather
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; than the expanded cost if it is not.
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; RUN: opt -passes='print<cost-model>' -cost-kind=code-size 2>&1 -disable-output -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s --check-prefix=CHECK
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; Check that cost is 1 for unusual load to register sized load.
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define i32 @loadUnusualIntegerWithTrunc(i128* %ptr) {
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; CHECK-LABEL: 'loadUnusualIntegerWithTrunc'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %out = load i128, i128* %ptr, align 4
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %trunc = trunc i128 %out to i32
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 %trunc
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;
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%out = load i128, i128* %ptr
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%trunc = trunc i128 %out to i32
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ret i32 %trunc
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}
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define i128 @loadUnusualInteger(i128* %ptr) {
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; CHECK-LABEL: 'loadUnusualInteger'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %out = load i128, i128* %ptr, align 4
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i128 %out
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;
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%out = load i128, i128* %ptr
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ret i128 %out
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}
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