diff options
| author | Arnold Schwaighofer <arnold.schwaighofer@gmail.com> | 2008-09-11 22:24:28 +0000 |
|---|---|---|
| committer | Arnold Schwaighofer <arnold.schwaighofer@gmail.com> | 2008-09-11 22:24:28 +0000 |
| commit | 363f53f3ec711f603c9ba4a56a750795cd3f71aa (patch) | |
| tree | 8873c06abdcd25b8c577c2b3eea93eb2b9dad3db /test | |
| parent | e5d20f947a002519832005c40c6c60962616a476 (diff) | |
| download | llvm-363f53f3ec711f603c9ba4a56a750795cd3f71aa.tar.gz llvm-363f53f3ec711f603c9ba4a56a750795cd3f71aa.tar.bz2 llvm-363f53f3ec711f603c9ba4a56a750795cd3f71aa.tar.xz | |
Add indirect tail call (function pointer) examples.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56127 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/tailcallfp.ll | 5 | ||||
| -rw-r--r-- | test/CodeGen/X86/tailcallfp2.ll | 25 |
2 files changed, 30 insertions, 0 deletions
diff --git a/test/CodeGen/X86/tailcallfp.ll b/test/CodeGen/X86/tailcallfp.ll new file mode 100644 index 0000000000..f614935103 --- /dev/null +++ b/test/CodeGen/X86/tailcallfp.ll @@ -0,0 +1,5 @@ +; RUN: llvm-as < %s | llc -march=x86 -x86-asm-syntax=intel -tailcallopt | not grep call +define fastcc i32 @bar(i32 %X, i32(double, i32) *%FP) { + %Y = tail call fastcc i32 %FP(double 0.0, i32 %X) + ret i32 %Y +} diff --git a/test/CodeGen/X86/tailcallfp2.ll b/test/CodeGen/X86/tailcallfp2.ll new file mode 100644 index 0000000000..4fa01f6fb1 --- /dev/null +++ b/test/CodeGen/X86/tailcallfp2.ll @@ -0,0 +1,25 @@ +; RUN: llvm-as < %s | llc -march=x86 -tailcallopt | grep {jmp} | grep {\\*%ecx} + +declare i32 @putchar(i32) + +define fastcc i32 @checktail(i32 %x, i32* %f, i32 %g) { + %tmp1 = icmp sgt i32 %x, 0 + br i1 %tmp1, label %if-then, label %if-else + +if-then: + %fun_ptr = bitcast i32* %f to i32(i32, i32*, i32)* + %arg1 = add i32 %x, -1 + call i32 @putchar(i32 90) + %res = tail call fastcc i32 %fun_ptr( i32 %arg1, i32 * %f, i32 %g) + ret i32 %res + +if-else: + ret i32 %x +} + + +define i32 @main() { + %f = bitcast i32 (i32, i32*, i32)* @checktail to i32* + %res = tail call fastcc i32 @checktail( i32 10, i32* %f,i32 10) + ret i32 %res +}
\ No newline at end of file |