158 lines
4.0 KiB
LLVM
158 lines
4.0 KiB
LLVM
; RUN: llc -mtriple=armv6m-linux-gnueabi -verify-machineinstrs -o - %s -disable-constant-hoisting | FileCheck %s
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%struct_type = type { [10000 x i32], i32, i32 }
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define void @test1(ptr %s, i32 %n) {
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; CHECK-LABEL: test1
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entry:
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%struct = load ptr, ptr %s
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br label %while_cond
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while_cond:
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%phi = phi i32 [ 0, %entry ], [ %i, %while_body ]
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%gep0 = getelementptr %struct_type, ptr %struct, i64 0, i32 1
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%gep1 = getelementptr %struct_type, ptr %struct, i64 0, i32 2
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%cmp = icmp slt i32 %phi, %n
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br i1 %cmp, label %while_body, label %while_end
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while_body:
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; CHECK: str r{{[0-9]+}}, [r{{[0-9]+}}]
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; CHECK-NEXT: str r{{[0-9]+}}, [r{{[0-9]+}}, #4]
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%i = add i32 %phi, 1
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store i32 %i, ptr %gep0
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store i32 %phi, ptr %gep1
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br label %while_cond
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while_end:
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ret void
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; CHECK: .LCPI0_0:
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; CHECK-NEXT: .long 40000
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; CHECK-NOT: LCPI0
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}
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define void @test2(ptr %struct, i32 %n) {
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; CHECK-LABEL: test2
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entry:
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%cmp = icmp eq ptr %struct, null
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br i1 %cmp, label %while_end, label %while_cond
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while_cond:
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%phi = phi i32 [ 0, %entry ], [ %i, %while_body ]
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%gep0 = getelementptr %struct_type, ptr %struct, i64 0, i32 1
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%gep1 = getelementptr %struct_type, ptr %struct, i64 0, i32 2
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%cmp1 = icmp slt i32 %phi, %n
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br i1 %cmp1, label %while_body, label %while_end
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while_body:
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; CHECK: str r{{[0-9]+}}, [r{{[0-9]+}}]
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; CHECK-NEXT: str r{{[0-9]+}}, [r{{[0-9]+}}, #4]
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%i = add i32 %phi, 1
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store i32 %i, ptr %gep0
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store i32 %phi, ptr %gep1
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br label %while_cond
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while_end:
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ret void
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; CHECK: .LCPI1_0:
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; CHECK-NEXT: .long 40000
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; CHECK-NOT: LCPI1
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}
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define void @test3(ptr %s1, ptr %s2, i1 %cond, i32 %n) {
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; CHECK-LABEL: test3
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entry:
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br i1 %cond, label %if_true, label %if_end
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if_true:
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br label %if_end
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if_end:
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%struct = phi ptr [ %s1, %entry ], [ %s2, %if_true ]
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%cmp = icmp eq ptr %struct, null
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br i1 %cmp, label %while_end, label %while_cond
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while_cond:
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%phi = phi i32 [ 0, %if_end ], [ %i, %while_body ]
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%gep0 = getelementptr %struct_type, ptr %struct, i64 0, i32 1
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%gep1 = getelementptr %struct_type, ptr %struct, i64 0, i32 2
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%cmp1 = icmp slt i32 %phi, %n
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br i1 %cmp1, label %while_body, label %while_end
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while_body:
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; CHECK: str r{{[0-9]+}}, [r{{[0-9]+}}]
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; CHECK-NEXT: str r{{[0-9]+}}, [r{{[0-9]+}}, #4]
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%i = add i32 %phi, 1
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store i32 %i, ptr %gep0
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store i32 %phi, ptr %gep1
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br label %while_cond
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while_end:
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ret void
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; CHECK: .LCPI2_0:
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; CHECK-NEXT: .long 40000
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; CHECK-NOT: LCPI2
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}
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declare ptr @foo()
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define void @test4(i32 %n) personality ptr @__FrameHandler {
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; CHECK-LABEL: test4
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entry:
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%struct = invoke ptr @foo() to label %while_cond unwind label %cleanup
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while_cond:
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%phi = phi i32 [ 0, %entry ], [ %i, %while_body ]
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%gep0 = getelementptr %struct_type, ptr %struct, i64 0, i32 1
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%gep1 = getelementptr %struct_type, ptr %struct, i64 0, i32 2
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%cmp = icmp slt i32 %phi, %n
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br i1 %cmp, label %while_body, label %while_end
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while_body:
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; CHECK: str r{{[0-9]+}}, [r{{[0-9]+}}]
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; CHECK-NEXT: str r{{[0-9]+}}, [r{{[0-9]+}}, #4]
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%i = add i32 %phi, 1
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store i32 %i, ptr %gep0
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store i32 %phi, ptr %gep1
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br label %while_cond
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while_end:
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ret void
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cleanup:
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landingpad { ptr, i32 } cleanup
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unreachable
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; CHECK: .LCPI3_0:
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; CHECK-NEXT: .long 40000
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; CHECK-NOT: LCPI3
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}
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declare i32 @__FrameHandler(...)
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define void @test5(ptr %s, i32 %n) {
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; CHECK-LABEL: test5
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entry:
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%struct = load ptr, ptr %s
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br label %while_cond
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while_cond:
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%phi = phi i32 [ 0, %entry ], [ %i, %while_body ]
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%gep0 = getelementptr [65536 x i32], ptr %struct, i64 0, i32 20000
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%gep1 = getelementptr [65536 x i32], ptr %struct, i64 0, i32 20001
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%cmp = icmp slt i32 %phi, %n
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br i1 %cmp, label %while_body, label %while_end
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while_body:
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; CHECK: str r{{[0-9]+}}, [r{{[0-9]+}}]
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; CHECK-NEXT: str r{{[0-9]+}}, [r{{[0-9]+}}, #4]
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%i = add i32 %phi, 1
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store i32 %i, ptr %gep0
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store i32 %phi, ptr %gep1
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br label %while_cond
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while_end:
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ret void
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; CHECK: .LCPI4_0:
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; CHECK-NEXT: .long 80000
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; CHECK-NOT: LCPI4
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}
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