diff options
author | Tim Northover <tnorthover@apple.com> | 2014-05-22 13:03:43 +0000 |
---|---|---|
committer | Tim Northover <tnorthover@apple.com> | 2014-05-22 13:03:43 +0000 |
commit | de70176f5ff5465cb32828ffcd70797c6ccb1f81 (patch) | |
tree | 8e436a0c0ea4adcdfe767692d569529e4e8970cc /test | |
parent | 65ea1ad2086954740678842d1b877f817003f727 (diff) | |
download | llvm-de70176f5ff5465cb32828ffcd70797c6ccb1f81.tar.gz llvm-de70176f5ff5465cb32828ffcd70797c6ccb1f81.tar.bz2 llvm-de70176f5ff5465cb32828ffcd70797c6ccb1f81.tar.xz |
Segmented stacks: omit __morestack call when there's no frame.
Patch by Florian Zeitz
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209436 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r-- | test/CodeGen/ARM/segmented-stacks.ll | 16 | ||||
-rw-r--r-- | test/CodeGen/Thumb/segmented-stacks.ll | 16 | ||||
-rw-r--r-- | test/CodeGen/X86/segmented-stacks.ll | 41 |
3 files changed, 62 insertions, 11 deletions
diff --git a/test/CodeGen/ARM/segmented-stacks.ll b/test/CodeGen/ARM/segmented-stacks.ll index a7804b900a..9873bf3329 100644 --- a/test/CodeGen/ARM/segmented-stacks.ll +++ b/test/CodeGen/ARM/segmented-stacks.ll @@ -57,6 +57,8 @@ define void @test_basic() #0 { define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { %addend = load i32 * %closure %result = add i32 %other, %addend + %mem = alloca i32, i32 10 + call void @dummy_use (i32* %mem, i32 10) ret i32 %result ; ARM-linux: test_nested: @@ -68,7 +70,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; ARM-linux-NEXT: cmp r4, r5 ; ARM-linux-NEXT: blo .LBB1_2 -; ARM-linux: mov r4, #0 +; ARM-linux: mov r4, #56 ; ARM-linux-NEXT: mov r5, #0 ; ARM-linux-NEXT: stmdb sp!, {lr} ; ARM-linux-NEXT: bl __morestack @@ -87,7 +89,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; ARM-android-NEXT: cmp r4, r5 ; ARM-android-NEXT: blo .LBB1_2 -; ARM-android: mov r4, #0 +; ARM-android: mov r4, #56 ; ARM-android-NEXT: mov r5, #0 ; ARM-android-NEXT: stmdb sp!, {lr} ; ARM-android-NEXT: bl __morestack @@ -234,4 +236,14 @@ define fastcc void @test_fastcc_large() #0 { } +define void @test_nostack() #0 { + ret void + +; ARM-linux-LABEL: test_nostack: +; ARM-linux-NOT: bl __morestack + +; ARM-android-LABEL: test_nostack: +; ARM-android-NOT: bl __morestack +} + attributes #0 = { "split-stack" } diff --git a/test/CodeGen/Thumb/segmented-stacks.ll b/test/CodeGen/Thumb/segmented-stacks.ll index 89043ec11d..d6e25c7792 100644 --- a/test/CodeGen/Thumb/segmented-stacks.ll +++ b/test/CodeGen/Thumb/segmented-stacks.ll @@ -57,6 +57,8 @@ define void @test_basic() #0 { define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { %addend = load i32 * %closure %result = add i32 %other, %addend + %mem = alloca i32, i32 10 + call void @dummy_use (i32* %mem, i32 10) ret i32 %result ; Thumb-android: test_nested: @@ -68,7 +70,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; Thumb-android-NEXT: cmp r4, r5 ; Thumb-android-NEXT: blo .LBB1_2 -; Thumb-android: mov r4, #0 +; Thumb-android: mov r4, #56 ; Thumb-android-NEXT: mov r5, #0 ; Thumb-android-NEXT: push {lr} ; Thumb-android-NEXT: bl __morestack @@ -88,7 +90,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; Thumb-linux-NEXT: cmp r4, r5 ; Thumb-linux-NEXT: blo .LBB1_2 -; Thumb-linux: mov r4, #0 +; Thumb-linux: mov r4, #56 ; Thumb-linux-NEXT: mov r5, #0 ; Thumb-linux-NEXT: push {lr} ; Thumb-linux-NEXT: bl __morestack @@ -246,4 +248,14 @@ define fastcc void @test_fastcc_large() #0 { } +define void @test_nostack() #0 { + ret void + +; Thumb-android-LABEL: test_nostack: +; Thumb-android-NOT: bl __morestack + +; Thumb-linux-LABEL: test_nostack: +; Thumb-linux-NOT: bl __morestack +} + attributes #0 = { "split-stack" } diff --git a/test/CodeGen/X86/segmented-stacks.ll b/test/CodeGen/X86/segmented-stacks.ll index 8089f20568..9dab3cd8d6 100644 --- a/test/CodeGen/X86/segmented-stacks.ll +++ b/test/CodeGen/X86/segmented-stacks.ll @@ -107,13 +107,15 @@ define void @test_basic() #0 { define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { %addend = load i32 * %closure %result = add i32 %other, %addend + %mem = alloca i32, i32 10 + call void @dummy_use (i32* %mem, i32 10) ret i32 %result ; X32-Linux: cmpl %gs:48, %esp ; X32-Linux-NEXT: ja .LBB1_2 ; X32-Linux: pushl $4 -; X32-Linux-NEXT: pushl $0 +; X32-Linux-NEXT: pushl $60 ; X32-Linux-NEXT: calll __morestack ; X32-Linux-NEXT: ret @@ -121,7 +123,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; X64-Linux-NEXT: ja .LBB1_2 ; X64-Linux: movq %r10, %rax -; X64-Linux-NEXT: movabsq $0, %r10 +; X64-Linux-NEXT: movabsq $56, %r10 ; X64-Linux-NEXT: movabsq $0, %r11 ; X64-Linux-NEXT: callq __morestack ; X64-Linux-NEXT: ret @@ -132,7 +134,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; X32-Darwin-NEXT: ja LBB1_2 ; X32-Darwin: pushl $4 -; X32-Darwin-NEXT: pushl $0 +; X32-Darwin-NEXT: pushl $60 ; X32-Darwin-NEXT: calll ___morestack ; X32-Darwin-NEXT: ret @@ -140,7 +142,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; X64-Darwin-NEXT: ja LBB1_2 ; X64-Darwin: movq %r10, %rax -; X64-Darwin-NEXT: movabsq $0, %r10 +; X64-Darwin-NEXT: movabsq $56, %r10 ; X64-Darwin-NEXT: movabsq $0, %r11 ; X64-Darwin-NEXT: callq ___morestack ; X64-Darwin-NEXT: ret @@ -150,7 +152,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; X32-MinGW-NEXT: ja LBB1_2 ; X32-MinGW: pushl $4 -; X32-MinGW-NEXT: pushl $0 +; X32-MinGW-NEXT: pushl $52 ; X32-MinGW-NEXT: calll ___morestack ; X32-MinGW-NEXT: ret @@ -159,7 +161,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; X64-MinGW-NEXT: ja .LBB1_2 ; X64-MinGW: movq %r10, %rax -; X64-MinGW-NEXT: movabsq $0, %r10 +; X64-MinGW-NEXT: movabsq $88, %r10 ; X64-MinGW-NEXT: movabsq $32, %r11 ; X64-MinGW-NEXT: callq __morestack ; X64-MinGW-NEXT: retq @@ -169,7 +171,7 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { ; X64-FreeBSD-NEXT: ja .LBB1_2 ; X64-FreeBSD: movq %r10, %rax -; X64-FreeBSD-NEXT: movabsq $0, %r10 +; X64-FreeBSD-NEXT: movabsq $56, %r10 ; X64-FreeBSD-NEXT: movabsq $0, %r11 ; X64-FreeBSD-NEXT: callq __morestack ; X64-FreeBSD-NEXT: ret @@ -435,4 +437,29 @@ define fastcc void @test_fastcc_large_with_ecx_arg(i32 %a) #0 { } +define void @test_nostack() #0 { + ret void + +; X32-Linux-LABEL: test_nostack: +; X32-Linux-NOT: calll __morestack + +; X64-Linux-LABEL: test_nostack: +; X32-Linux-NOT: callq __morestack + +; X32-Darwin-LABEL: test_nostack: +; X32-Darwin-NOT: calll __morestack + +; X64-Darwin-LABEL: test_nostack: +; X64-Darwin-NOT: callq __morestack + +; X32-MinGW-LABEL: test_nostack: +; X32-MinGW-NOT: calll __morestack + +; X64-MinGW-LABEL: test_nostack: +; X64-MinGW-NOT: callq __morestack + +; X64-FreeBSD-LABEL: test_nostack: +; X64-FreeBSD-NOT: callq __morestack +} + attributes #0 = { "split-stack" } |