From 3fad2bcd25d5f46d98ea7e41c6654833f197b960 Mon Sep 17 00:00:00 2001 From: Bill Schmidt Date: Sun, 25 Aug 2013 22:33:42 +0000 Subject: [PowerPC] Add fast-isel branch and compare selection. First chunk of actual fast-isel selection code. This handles direct and indirect branches, as well as feeding compares for direct branches. PPCFastISel::PPCEmitIntExt() is just roughed in and will be expanded in a future patch. This also corrects a problem with selection for constant pool entries in JIT mode or with small code model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189202 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/PowerPC/fast-isel-br-const.ll | 43 ++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 test/CodeGen/PowerPC/fast-isel-br-const.ll (limited to 'test/CodeGen/PowerPC/fast-isel-br-const.ll') diff --git a/test/CodeGen/PowerPC/fast-isel-br-const.ll b/test/CodeGen/PowerPC/fast-isel-br-const.ll new file mode 100644 index 0000000..2cfb8a2 --- /dev/null +++ b/test/CodeGen/PowerPC/fast-isel-br-const.ll @@ -0,0 +1,43 @@ +; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64 + +define i32 @t1(i32 %a, i32 %b) nounwind uwtable ssp { +entry: +; ELF64: t1 + %x = add i32 %a, %b + br i1 1, label %if.then, label %if.else +; ELF64-NOT: b {{\.?}}LBB0_1 + +if.then: ; preds = %entry + call void @foo1() + br label %if.end7 + +if.else: ; preds = %entry + br i1 0, label %if.then2, label %if.else3 +; ELF64: b {{\.?}}LBB0_4 + +if.then2: ; preds = %if.else + call void @foo2() + br label %if.end6 + +if.else3: ; preds = %if.else + %y = sub i32 %a, %b + br i1 1, label %if.then5, label %if.end +; ELF64-NOT: b {{\.?}}LBB0_5 + +if.then5: ; preds = %if.else3 + call void @foo1() + br label %if.end + +if.end: ; preds = %if.then5, %if.else3 + br label %if.end6 + +if.end6: ; preds = %if.end, %if.then2 + br label %if.end7 + +if.end7: ; preds = %if.end6, %if.then + ret i32 0 +} + +declare void @foo1() + +declare void @foo2() -- cgit v1.1