mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-03-04 05:31:51 +00:00
65482b1bb8
"For ARM stack frames that utilize variable sized objects and have either large local stack areas or require dynamic stack realignment, allocate a base register via which to access the local frame. This allows efficient access to frame indices not accessible via the FP (either due to being out of range or due to dynamic realignment) or the SP (due to variable sized object allocation). In particular, this greatly improves efficiency of access to spill slots in Thumb functions which contain VLAs." r112986 fixed a latent bug exposed by the above. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112989 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
1.8 KiB
LLVM
60 lines
1.8 KiB
LLVM
; RUN: llc < %s -march=thumb | not grep {ldr sp}
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; RUN: llc < %s -mtriple=thumb-apple-darwin | \
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; RUN: not grep {sub.*r7}
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; RUN: llc < %s -march=thumb | grep {mov.*r6, sp}
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%struct.state = type { i32, %struct.info*, float**, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64, i64, i64, i64, i64, i64, i8* }
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%struct.info = type { i32, i32, i32, i32, i32, i32, i32, i8* }
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define void @t1(%struct.state* %v) {
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%tmp6 = load i32* null
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%tmp8 = alloca float, i32 %tmp6
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store i32 1, i32* null
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br i1 false, label %bb123.preheader, label %return
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bb123.preheader:
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br i1 false, label %bb43, label %return
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bb43:
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call fastcc void @f1( float* %tmp8, float* null, i32 0 )
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%tmp70 = load i32* null
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%tmp85 = getelementptr float* %tmp8, i32 0
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call fastcc void @f2( float* null, float* null, float* %tmp85, i32 %tmp70 )
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ret void
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return:
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ret void
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}
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declare fastcc void @f1(float*, float*, i32)
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declare fastcc void @f2(float*, float*, float*, i32)
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%struct.comment = type { i8**, i32*, i32, i8* }
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@str215 = external global [2 x i8]
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define void @t2(%struct.comment* %vc, i8* %tag, i8* %contents) {
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%tmp1 = call i32 @strlen( i8* %tag )
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%tmp3 = call i32 @strlen( i8* %contents )
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%tmp4 = add i32 %tmp1, 2
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%tmp5 = add i32 %tmp4, %tmp3
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%tmp6 = alloca i8, i32 %tmp5
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%tmp9 = call i8* @strcpy( i8* %tmp6, i8* %tag )
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%tmp6.len = call i32 @strlen( i8* %tmp6 )
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%tmp6.indexed = getelementptr i8* %tmp6, i32 %tmp6.len
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call void @llvm.memcpy.i32( i8* %tmp6.indexed, i8* getelementptr ([2 x i8]* @str215, i32 0, i32 0), i32 2, i32 1 )
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%tmp15 = call i8* @strcat( i8* %tmp6, i8* %contents )
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call fastcc void @comment_add( %struct.comment* %vc, i8* %tmp6 )
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ret void
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}
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declare i32 @strlen(i8*)
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declare i8* @strcat(i8*, i8*)
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declare fastcc void @comment_add(%struct.comment*, i8*)
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declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)
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declare i8* @strcpy(i8*, i8*)
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