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https://github.com/c64scene-ar/llvm-6502.git
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be8cc2a3de
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'll change the JIT with a follow-up patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
1.8 KiB
LLVM
56 lines
1.8 KiB
LLVM
; RUN: llvm-as < %s | llc -disable-fp-elim -O0 -mcpu=i486 | grep 1082126238 | count 3
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; RUN: llvm-as < %s | llc -disable-fp-elim -O0 -mcpu=i486 | grep 3058016715 | count 1
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;; magic constants are 3.999f and half of 3.999
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; ModuleID = '1489.c'
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
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target triple = "i686-apple-darwin8"
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@.str = internal constant [13 x i8] c"%d %d %d %d\0A\00" ; <[13 x i8]*> [#uses=1]
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define i32 @quux() {
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entry:
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%tmp1 = tail call i32 @lrintf( float 0x400FFDF3C0000000 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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declare i32 @lrintf(float)
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define i32 @foo() {
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entry:
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%tmp1 = tail call i32 @lrint( double 3.999000e+00 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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declare i32 @lrint(double)
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define i32 @bar() {
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entry:
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%tmp1 = tail call i32 @lrintf( float 0x400FFDF3C0000000 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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define i32 @baz() {
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entry:
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%tmp1 = tail call i32 @lrintf( float 0x400FFDF3C0000000 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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define i32 @main() {
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entry:
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%tmp = tail call i32 @baz( ) ; <i32> [#uses=1]
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%tmp1 = tail call i32 @bar( ) ; <i32> [#uses=1]
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%tmp2 = tail call i32 @foo( ) ; <i32> [#uses=1]
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%tmp3 = tail call i32 @quux( ) ; <i32> [#uses=1]
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%tmp5 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([13 x i8]* @.str, i32 0, i32 0), i32 %tmp3, i32 %tmp2, i32 %tmp1, i32 %tmp ) ; <i32> [#uses=0]
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ret i32 undef
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}
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declare i32 @printf(i8*, ...)
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