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https://github.com/c64scene-ar/llvm-6502.git
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27b1252c13
This changes the tests that were targeting ARM EABI to explicitly specify the environment rather than relying on the default. This breaks with the new Windows on ARM support when running the tests on Windows where the default environment is no longer EABI. Take the opportunity to avoid a pointless redirect (helps when trying to debug with providing a command line invocation which can be copy and pasted) and removing a few greps in favour of FileCheck. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205541 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.8 KiB
LLVM
48 lines
1.8 KiB
LLVM
; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s
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; This loop is rewritten with an indvar which counts down, which
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; frees up a register from holding the trip count.
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define void @test(i32* %P, i32 %A, i32 %i) nounwind {
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entry:
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; CHECK: str r1, [{{r.*}}, {{r.*}}, lsl #2]
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icmp eq i32 %i, 0 ; <i1>:0 [#uses=1]
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br i1 %0, label %return, label %bb
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bb: ; preds = %bb, %entry
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%indvar = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2]
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%i_addr.09.0 = sub i32 %i, %indvar ; <i32> [#uses=1]
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%tmp2 = getelementptr i32* %P, i32 %i_addr.09.0 ; <i32*> [#uses=1]
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store i32 %A, i32* %tmp2
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%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
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icmp eq i32 %indvar.next, %i ; <i1>:1 [#uses=1]
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br i1 %1, label %return, label %bb
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return: ; preds = %bb, %entry
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ret void
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}
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; This loop has a non-address use of the count-up indvar, so
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; it'll remain. Now the original store uses a negative-stride address.
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define void @test_with_forced_iv(i32* %P, i32 %A, i32 %i) nounwind {
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entry:
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; CHECK: str r1, [{{r.*}}, -{{r.*}}, lsl #2]
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icmp eq i32 %i, 0 ; <i1>:0 [#uses=1]
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br i1 %0, label %return, label %bb
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bb: ; preds = %bb, %entry
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%indvar = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2]
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%i_addr.09.0 = sub i32 %i, %indvar ; <i32> [#uses=1]
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%tmp2 = getelementptr i32* %P, i32 %i_addr.09.0 ; <i32*> [#uses=1]
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store i32 %A, i32* %tmp2
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store i32 %indvar, i32* null
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%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
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icmp eq i32 %indvar.next, %i ; <i1>:1 [#uses=1]
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br i1 %1, label %return, label %bb
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return: ; preds = %bb, %entry
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ret void
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}
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