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2930fae4b8
This makes it more likely that we can use the 16-bit push and pop instructions on Thumb-2, saving around 4 bytes per function. Differential Revision: http://reviews.llvm.org/D9165 llvm-svn: 235637
55 lines
1.8 KiB
LLVM
55 lines
1.8 KiB
LLVM
; RUN: llc %s -mtriple=thumbv7-linux-gnueabi -o - | \
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; RUN: FileCheck -check-prefix=ELFASM %s
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; RUN: llc %s -mtriple=thumbebv7-linux-gnueabi -o - | \
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; RUN: FileCheck -check-prefix=ELFASM %s
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; RUN: llc %s -mtriple=thumbv7-linux-gnueabi -filetype=obj -o - | \
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; RUN: llvm-readobj -s -sd | FileCheck -check-prefix=ELFOBJ -check-prefix=ELFOBJ-LE %s
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; RUN: llc %s -mtriple=thumbebv7-linux-gnueabi -filetype=obj -o - | \
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; RUN: llvm-readobj -s -sd | FileCheck -check-prefix=ELFOBJ -check-prefix=ELFOBJ-BE %s
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;; Make sure that bl __aeabi_read_tp is materialized and fixed up correctly
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;; in the obj case.
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@i = external thread_local global i32
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@a = external global i8
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@b = external global [10 x i8]
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define arm_aapcs_vfpcc i32 @main() nounwind {
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entry:
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%0 = load i32, i32* @i, align 4
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switch i32 %0, label %bb2 [
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i32 12, label %bb
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i32 13, label %bb1
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]
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bb: ; preds = %entry
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%1 = tail call arm_aapcs_vfpcc i32 @foo(i8* @a) nounwind
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ret i32 %1
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; ELFASM: bl __aeabi_read_tp
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; ELFOBJ: Sections [
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; ELFOBJ: Section {
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; ELFOBJ: Name: .text
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; ELFOBJ-LE: SectionData (
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;;; BL __aeabi_read_tp is ---+
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;;; V
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; ELFOBJ-LE-NEXT: 0000: 80B50E48 78440168 FFF7FEFF 40580D28
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; ELFOBJ-BE: SectionData (
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;;; BL __aeabi_read_tp is ---+
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;;; V
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; ELFOBJ-BE-NEXT: 0000: B580480E 44786801 F7FFFFFE 5840280D
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bb1: ; preds = %entry
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%2 = tail call arm_aapcs_vfpcc i32 @bar(i32* bitcast ([10 x i8]* @b to i32*)) nounwind
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ret i32 %2
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bb2: ; preds = %entry
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ret i32 -1
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}
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declare arm_aapcs_vfpcc i32 @foo(i8*)
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declare arm_aapcs_vfpcc i32 @bar(i32*)
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