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; Test how we handle eliding inttoptr instructions.
; TODO(kschimpf) Expand these tests as further CL's are added for issue 3544.
; RUN: llvm-as < %s | pnacl-freeze --pnacl-version=1 | pnacl-bcanalyzer -dump \
; RUN: | FileCheck %s -check-prefix=PF1
; RUN: llvm-as < %s | pnacl-freeze --pnacl-version=1 | pnacl-thaw \
; RUN: | llvm-dis - | FileCheck %s -check-prefix=TD1
; RUN: llvm-as < %s | pnacl-freeze --pnacl-version=2 | pnacl-bcanalyzer -dump \
; RUN: | FileCheck %s -check-prefix=PF2
; RUN: llvm-as < %s | pnacl-freeze --pnacl-version=2 | pnacl-thaw \
; RUN: | llvm-dis - | FileCheck %s -check-prefix=TD2
; ------------------------------------------------------
; Test that we elide the simple case of inttoptr of a load.
define void @SimpleLoad(i32 %i) {
%1 = inttoptr i32 %i to i32*
%2 = load i32* %1, align 4
ret void
}
; TD1: define void @SimpleLoad(i32 %i) {
; TD1-NEXT: %1 = inttoptr i32 %i to i32*
; TD1-NEXT: %2 = load i32* %1, align 4
; TD1-NEXT: ret void
; TD1-NEXT: }
; PF1: <FUNCTION_BLOCK NumWords=6 BlockCodeSize=4>
; PF1-NEXT: <DECLAREBLOCKS op0=1/>
; PF1-NEXT: <INST_CAST abbrevid=7 op0=1 op1=1 op2=10/>
; PF1-NEXT: <INST_LOAD abbrevid=4 op0=1 op1=3 op2=0/>
; PF1-NEXT: <INST_RET abbrevid=8/>
; PF1: </FUNCTION_BLOCK>
; TD2: define void @SimpleLoad(i32 %i) {
; TD2-NEXT: %1 = inttoptr i32 %i to i32*
; TD2-NEXT: %2 = load i32* %1, align 4
; TD2-NEXT: ret void
; TD2-NEXT: }
; PF2: <FUNCTION_BLOCK NumWords=5 BlockCodeSize=4>
; PF2-NEXT: <DECLAREBLOCKS op0=1/>
; PF2-NEXT: <INST_LOAD abbrevid=4 op0=1 op1=3 op2=0 op3=0/>
; PF2-NEXT: <INST_RET abbrevid=8/>
; PF2: </FUNCTION_BLOCK>
; ------------------------------------------------------
; Test that we don't elide an inttoptr if one of its uses is not a load.
define i32* @NonsimpleLoad(i32 %i) {
%1 = inttoptr i32 %i to i32*
%2 = load i32* %1, align 4
ret i32* %1
}
; TD1: define i32* @NonsimpleLoad(i32 %i) {
; TD1-NEXT: %1 = inttoptr i32 %i to i32*
; TD1-NEXT: %2 = load i32* %1, align 4
; TD1-NEXT: ret i32* %1
; TD1-NEXT: }
; PF1: <FUNCTION_BLOCK NumWords=6 BlockCodeSize=4>
; PF1-NEXT: <DECLAREBLOCKS op0=1/>
; PF1-NEXT: <INST_CAST abbrevid=7 op0=1 op1=1 op2=10/>
; PF1-NEXT: <INST_LOAD abbrevid=4 op0=1 op1=3 op2=0/>
; PF1-NEXT: <INST_RET abbrevid=9 op0=2/>
; PF1: </FUNCTION_BLOCK>
; TD2: define i32* @NonsimpleLoad(i32 %i) {
; TD2-NEXT: %1 = inttoptr i32 %i to i32*
; TD2-NEXT: %2 = load i32* %1, align 4
; TD2-NEXT: ret i32* %1
; TD2-NEXT: }
; PF2: <FUNCTION_BLOCK NumWords=6 BlockCodeSize=4>
; PF2-NEXT: <DECLAREBLOCKS op0=1/>
; PF2-NEXT: <INST_CAST abbrevid=7 op0=1 op1=1 op2=10/>
; PF2-NEXT: <INST_LOAD abbrevid=4 op0=1 op1=3 op2=0 op3=0/>
; PF2-NEXT: <INST_RET abbrevid=9 op0=2/>
; PF2: </FUNCTION_BLOCK>
; ------------------------------------------------------
; Test that we can handle multiple inttoptr of loads.
define i32 @TwoLoads(i32 %i) {
%1 = inttoptr i32 %i to i32*
%2 = load i32* %1, align 4
%3 = inttoptr i32 %i to i32*
%4 = load i32* %3, align 4
%5 = add i32 %2, %4
ret i32 %5
}
; TD1: define i32 @TwoLoads(i32 %i) {
; TD1-NEXT: %1 = inttoptr i32 %i to i32*
; TD1-NEXT: %2 = load i32* %1, align 4
; TD1-NEXT: %3 = inttoptr i32 %i to i32*
; TD1-NEXT: %4 = load i32* %3, align 4
; TD1-NEXT: %5 = add i32 %2, %4
; TD1-NEXT: ret i32 %5
; TD1-NEXT: }
; PF1: <FUNCTION_BLOCK NumWords=8 BlockCodeSize=4>
; PF1-NEXT: <DECLAREBLOCKS op0=1/>
; PF1-NEXT: <INST_CAST abbrevid=7 op0=1 op1=1 op2=10/>
; PF1-NEXT: <INST_LOAD abbrevid=4 op0=1 op1=3 op2=0/>
; PF1-NEXT: <INST_CAST abbrevid=7 op0=3 op1=1 op2=10/>
; PF1-NEXT: <INST_LOAD abbrevid=4 op0=1 op1=3 op2=0/>
; PF1-NEXT: <INST_BINOP abbrevid=5 op0=3 op1=1 op2=0/>
; PF1-NEXT: <INST_RET abbrevid=9 op0=1/>
; PF1: </FUNCTION_BLOCK>
; TD2: define i32 @TwoLoads(i32 %i) {
; TD2-NEXT: %1 = inttoptr i32 %i to i32*
; TD2-NEXT: %2 = load i32* %1, align 4
; TD2-NEXT: %3 = inttoptr i32 %i to i32*
; TD2-NEXT: %4 = load i32* %3, align 4
; TD2-NEXT: %5 = add i32 %2, %4
; TD2-NEXT: ret i32 %5
; TD2-NEXT: }
; PF2: <FUNCTION_BLOCK NumWords=7 BlockCodeSize=4>
; PF2-NEXT: <DECLAREBLOCKS op0=1/>
; PF2-NEXT: <INST_LOAD abbrevid=4 op0=1 op1=3 op2=0 op3=0/>
; PF2-NEXT: <INST_LOAD abbrevid=4 op0=2 op1=3 op2=0 op3=0/>
; PF2-NEXT: <INST_BINOP abbrevid=5 op0=2 op1=1 op2=0/>
; PF2-NEXT: <INST_RET abbrevid=9 op0=1/>
; PF2: </FUNCTION_BLOCK>
; ------------------------------------------------------
; Test how we duplicate inttoptrs, even if optimized in the input file.
define i32 @TwoLoadOpt(i32 %i) {
%1 = inttoptr i32 %i to i32*
%2 = load i32* %1, align 4
%3 = load i32* %1, align 4
%4 = add i32 %2, %3
ret i32 %4
}
; TD1: define i32 @TwoLoadOpt(i32 %i) {
; TD1-NEXT: %1 = inttoptr i32 %i to i32*
; TD1-NEXT: %2 = load i32* %1, align 4
; TD1-NEXT: %3 = load i32* %1, align 4
; TD1-NEXT: %4 = add i32 %2, %3
; TD1-NEXT: ret i32 %4
; TD1-NEXT: }
; PF1: <FUNCTION_BLOCK NumWords=7 BlockCodeSize=4>
; PF1-NEXT: <DECLAREBLOCKS op0=1/>
; PF1-NEXT: <INST_CAST abbrevid=7 op0=1 op1=1 op2=10/>
; PF1-NEXT: <INST_LOAD abbrevid=4 op0=1 op1=3 op2=0/>
; PF1-NEXT: <INST_LOAD abbrevid=4 op0=2 op1=3 op2=0/>
; PF1-NEXT: <INST_BINOP abbrevid=5 op0=2 op1=1 op2=0/>
; PF1-NEXT: <INST_RET abbrevid=9 op0=1/>
; PF1: </FUNCTION_BLOCK>
; TD2: define i32 @TwoLoadOpt(i32 %i) {
; TD2-NEXT: %1 = inttoptr i32 %i to i32*
; TD2-NEXT: %2 = load i32* %1, align 4
; TD2-NEXT: %3 = inttoptr i32 %i to i32*
; TD2-NEXT: %4 = load i32* %3, align 4
; TD2-NEXT: %5 = add i32 %2, %4
; TD2-NEXT: ret i32 %5
; TD2-NEXT: }
; PF2: <FUNCTION_BLOCK NumWords=7 BlockCodeSize=4>
; PF2-NEXT: <DECLAREBLOCKS op0=1/>
; PF2-NEXT: <INST_LOAD abbrevid=4 op0=1 op1=3 op2=0 op3=0/>
; PF2-NEXT: <INST_LOAD abbrevid=4 op0=2 op1=3 op2=0 op3=0/>
; PF2-NEXT: <INST_BINOP abbrevid=5 op0=2 op1=1 op2=0/>
; PF2-NEXT: <INST_RET abbrevid=9 op0=1/>
; PF2-NEXT: <VALUE_SYMTAB NumWords=1 BlockCodeSize=3>
; PF2-NEXT: <ENTRY abbrevid=6 op0=4 op1=105/>
; PF2-NEXT: </VALUE_SYMTAB>
; PF2: </FUNCTION_BLOCK>
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