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decaafe6c2
... When we emit several calls to the same function in the same basic block. An indirect call uses a "BLX r0" instruction which has a 16-bit encoding. If many calls are made to the same target, this can enable significant code size reductions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275537 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
547 B
LLVM
29 lines
547 B
LLVM
; RUN: llc < %s | FileCheck %s
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv7m-arm-none-eabi"
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; CHECK-LABEL: f:
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; CHECK: blx r
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; CHECK: blx r
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; CHECK: blx r
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define void @f() minsize optsize {
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entry:
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call void @g(i32 45, i32 66)
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call void @g(i32 88, i32 32)
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call void @g(i32 55, i32 33)
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ret void
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}
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; CHECK-LABEL: h:
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; CHECK: bl g
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; CHECK: bl g
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define void @h() minsize optsize {
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entry:
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call void @g(i32 45, i32 66)
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call void @g(i32 88, i32 32)
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ret void
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}
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declare void @g(i32,i32)
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