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https://github.com/c64scene-ar/llvm-6502.git
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ac096808a3
Also added a test case to check for the added benefit of this patch: it's optimizing away the unnecessary restore of sp from fp for some non-leaf functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110707 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
723 B
LLVM
36 lines
723 B
LLVM
; RUN: llc < %s -mtriple=thumb-apple-darwin | FileCheck %s
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define void @test1() {
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; CHECK: test1:
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; CHECK: sub sp, #256
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; CHECK: add sp, #256
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%tmp = alloca [ 64 x i32 ] , align 4
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ret void
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}
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define void @test2() {
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; CHECK: test2:
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; CHECK: ldr r0, LCPI
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; CHECK: add sp, r0
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; CHECK: mov sp, r7
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; CHECK: sub sp, #4
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%tmp = alloca [ 4168 x i8 ] , align 4
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ret void
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}
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define i32 @test3() {
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; CHECK: test3:
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; CHECK: ldr r1, LCPI
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; CHECK: add sp, r1
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; CHECK: ldr r1, LCPI
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; CHECK: add r1, sp
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; CHECK: mov sp, r7
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; CHECK: sub sp, #4
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%retval = alloca i32, align 4
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%tmp = alloca i32, align 4
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%a = alloca [805306369 x i8], align 16
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store i32 0, i32* %tmp
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%tmp1 = load i32* %tmp
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ret i32 %tmp1
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}
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